brake issue

So last night I was pulling my horse trailer, turning out of a drive way (slowly with wheels full lock to the left) and eventually had the right tire up to a huge rock and was apparently trying to drive over it (didn't know it was there). Was able to back up and turn slightly tighter and go on...

I need some advice on what to look for concerning some issues on my 2005 F250 6.0 PSD. I am pretty mechanically inclined, but have hit a wall on this without having to take it into dealership to let them empty the bank account. I will list the issues ive been having, and the repairs I have made...

So, for all of you guys that have a sticky brake issue, I have a possible free fix. I just changed out my front rotors and pads. I did the rear a few weeks ago, but the pads looked good up front. A shake just started up when I brake at speed. Knowing the rears to be good I went ahead and did...